Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4848041 | Abrasive grains in the shape of platelets | — | 1989-07-18 |
HK
Howard L. Kruschke
Overall (1989): #38,502 of 140,708Top 30%
1
Patents 1989